"Hello Maliheh, you will need to go to this pagehttp://www.globaleducationconference.com/page/2012-sessions-and-schedule Scroll down and find your time zone. Click on the time. This will take you to schedule.
Choose the session you would like…"
Choose the session you would like to attend and up to 10 mins before the session, click on the link to the room that is given and you will be taken into Black Board Collaborate room where the session will take place. Hope this makes sense to you